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Larger of emirps (pairs) with a prime number of only prime digits.
2

%I #4 Mar 31 2012 10:26:06

%S 73,733,33223,35323,72253,72353,73327,73523,73553,75223,75253,77237,

%T 77323,77527,77557,3235223,3353323,3375233,3527233,3532733,3573523,

%U 3573733,3575333,3733333,3735233,3735353,3753353,3755273,3755333

%N Larger of emirps (pairs) with a prime number of only prime digits.

%F Subsequence of A133753

%Y Cf. A137834.

%K base,nonn

%O 1,1

%A _Lekraj Beedassy_, Feb 12 2008

%E Duplicate term removed and a(16)-a(29) from _Donovan Johnson_, Jun 06 2009